Both the SPY/$SPX and QQQ/$NDX are currently poised to gap to just below resistance as shown on these 60 minute charts.  My primary scenario would have prices turning down around those levels (orange line) while the alternative scenario has the Q’s continuing a bit higher to challenge it’s recent highs with the SPY/$SPX likely making a marginal new high before turning lower.

SPY 60 min QQQ 60 min 2-25-12 1